re-energy.ca

WIND ENERGY

Wind energy is really another form of solar energy. Sunlight falling on oceans and continents
causes air to warm and rise, which in turn generates surface winds. People have harnessed the power of the
wind for thousands of years, first to carry
ships across oceans and, later, to pump water and grind grain. Today, the wind is harnessed as a clean, safe source of electricity
around the world.

Use the re-energy.ca construction plan to build your own wind turbine. The plan provided here will construct a vertical axis wind turbine, modelled after a design
invented by the
Finnish engineer S.J. Savonius in 1922. The Savonius
rotor uses drag — not lift — to capture energy for making
electricity. Although it isn't as efficient as a conventional
horizontal axis turbine, it is much easier to build.